org.apache.hadoop.hive.metastore.txn.jdbc.commands

Class AddWriteIdsToMinHistoryCommand

java.lang.Object

org.apache.hadoop.hive.metastore.txn.jdbc.commands.AddWriteIdsToMinHistoryCommand

All Implemented Interfaces:

ConditionalCommand, ParameterizedBatchCommand<Object[]>

public class AddWriteIdsToMinHistoryCommand
extends Object
implements ParameterizedBatchCommand<Object[]>, ConditionalCommand

Constructor Summary

Constructors

Constructor and Description
AddWriteIdsToMinHistoryCommand(long txnId, Map<String,Long> minOpenWriteIds)

Method Summary

Modifier and Type	Method and Description
String	getParameterizedQueryString(DatabaseProduct databaseProduct) The parameterized query string.
org.springframework.jdbc.core.ParameterizedPreparedStatementSetter<Object[]>	getPreparedStatementSetter() Implementations must return a ParameterizedPreparedStatementSetter instance which will be responsible for setting the parameter values for all the items in the batch
List<Object[]>	getQueryParameters() A List instance containing the required parameters for the query string.
void	onError(DatabaseProduct databaseProduct, Exception e) Called in case of execution error in order to notify this command about the failure
Function<Integer,Boolean>	resultPolicy()
boolean	shouldBeUsed(DatabaseProduct databaseProduct) Indicates if the command should be executed or not

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AddWriteIdsToMinHistoryCommand

public AddWriteIdsToMinHistoryCommand(long txnId,
                                      Map<String,Long> minOpenWriteIds)

Method Detail

getParameterizedQueryString

public String getParameterizedQueryString(DatabaseProduct databaseProduct)

Description copied from interface: ParameterizedBatchCommand

The parameterized query string. It is allowed if the query has no parameters at all.

Specified by:

getParameterizedQueryString in interface ParameterizedBatchCommand<Object[]>

Parameters:

databaseProduct - A DatabaseProduct instance representing the type of the underlying HMS dabatabe.

Returns:

Returns the parameterized query string.

getQueryParameters

public List<Object[]> getQueryParameters()

Description copied from interface: ParameterizedBatchCommand

A List instance containing the required parameters for the query string.

Specified by:

getQueryParameters in interface ParameterizedBatchCommand<Object[]>

getPreparedStatementSetter

public org.springframework.jdbc.core.ParameterizedPreparedStatementSetter<Object[]> getPreparedStatementSetter()

Description copied from interface: ParameterizedBatchCommand

Implementations must return a ParameterizedPreparedStatementSetter instance which will be responsible for setting the parameter values for all the items in the batch

Specified by:

getPreparedStatementSetter in interface ParameterizedBatchCommand<Object[]>

resultPolicy

public Function<Integer,Boolean> resultPolicy()

Specified by:

resultPolicy in interface ParameterizedBatchCommand<Object[]>

Returns:

Returns the result policy to be used to validate the number of affected rows.

shouldBeUsed

public boolean shouldBeUsed(DatabaseProduct databaseProduct)

Description copied from interface: ConditionalCommand

Indicates if the command should be executed or not

Specified by:

shouldBeUsed in interface ConditionalCommand

Returns:

Returns true if the command can be executed, false otherwise.

onError

public void onError(DatabaseProduct databaseProduct,
                    Exception e)

Description copied from interface: ConditionalCommand

Called in case of execution error in order to notify this command about the failure

Specified by:

onError in interface ConditionalCommand

e - The caught Exception